Home / 21,017.90-31,526.80-6,225.64

Finding the Fourth Proportional to 21,017.90, 31,526.80 and 6,225.64

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Solution

The fourth proportional to 21,017.90, 31,526.80 and 6,225.64 is: 9,338.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,017.90 : 31,526.80 = 6,225.64 : x
  2. Step 2: Convert to fraction form
    21,017.90/31,526.80 = 6,225.64/x
  3. Step 3: Cross multiply
    21,017.90x = 31,526.80 × 6,225.64
  4. Step 4: Simplify right side
    21,017.90x = 196,274,412.77
  5. Step 5: Solve for x
    x = 196,274,412.77/21,017.90
  6. Step 6: Final answer
    x = 9,338.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.